What controls GPU fan when I do not have WattMan enabled

I just reinstalled drivers and I am not accepting license of WattMan as it caused instabilities of my rig.

 

I am also not installing ASUS Tweak II tool for now.

 

But this leaves me in question - what controls the card fan. I have ASUS STRIX GAMING RX560 4GB RAM OC which should be slightly overclocked. The fan operates at low speed which is great, but just wondering if this cannot damage the card.